三秋 さんしゅう おもいじゃなかったです
sanshūno omoijanakattadesu

Noun
Desu Copula

The polite, past negative form of 三秋の思い

1. It wasn't a three-autumn thought.; It wasn't a long-held feeling.; It wasn't a deep affection.

Past/Perfective
Negative
Polite
Casual Register